Definition of yttrium in English:


Syllabification: yt·tri·um
Pronunciation: /ˈitrēəm


  • The chemical element of atomic number 39, a grayish-white metal generally included among the rare earth elements. (Symbol: Y)
    More example sentences
    • Among various radionuclides, yttrium is of particular importance due to its chemical and nuclear characteristics.
    • The elements more abundant in Earth's crust seem to have more mentions - iron and oxygen have far more pages than yttrium and scandium.
    • Edwards notes from chemical analysis that there are traces of yttrium which are undoubtedly of diagenetic origin.


early 19th century: modern Latin, from Ytterby (see ytterbium).

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